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What are the sources for WeatherOnline forecasts?


The WeatherOnline forecasts are created by using a MOS system developed in-house with the most current US weather services model data (GFS). The statistical methods of the Model-Output-Statistic (MOS)-System were developed in cooperation with the Meteorological Department of the University of Bonn.

What is a MOS-System?


A Model-Output-Statistic (MOS)-System combines the data of the weather forecast model and the locally recorded data for any given point by transforming the model data from a coarse grid to detailed small scale areas.
In order to do so, one needs a large volume of past model forecast data as well as the corresponding recorded data for any given location. The MOS-System relates these two sets of data in an optimized fashion allowing development of the local weather forecast by using the most current model forecast.

What are the time intervals used in the temperature and icons of the local forecasts?


The forecasted maximum temperature always refers to a 12hour window from 6am to 6om local time.
The forecasted minimum temperature always refers to the 12hour window from 6pm of the day before the forecast day to 6 am of the forecast day.
The weather icon for the morning refers to the time between 6am and 12pm local time, the icon for the afternoon is valid from 12am to 6pm local time and the evening icon refers to the time from 6pm to 12am local time.

How often are the current weather conditions and forecasts updated?


The current weather information as well as the satellite images are updated every 30 minutes whereas the radar images are being updated every 15 minutes.
The local weather forecasts as well as the weather charts are updated 8 times a day. The updates start at 2 am CEST or 3 am CEST depending on daylight saving time and continue on a three hourly bases.


Nearby Weather Stations - Bolu Distance
Bolu 0.3 km
Düzce 49.2 km
Zonguldak 71.4 km
Zonguldak 71.4 km
Bartın 117.8 km
Mürted Airfield Command 124.0 km
Adapazarı 131.8 km
Etimesgut Air Base 141.9 km
Eskişehir Airport 146.4 km
Guvercinlik 148.6 km
Ankara Central 160.8 km
Ankara/Esenboga 166.3 km
Cengiz Topel Naval Air Station 189.6 km
Bilecik 190.2 km
Kütahya 219.1 km
Afyonkarahisar 220.8 km
Afyonkarahisar 223.3 km
Çankırı 224.8 km
Zafer Havaalani 225.2 km
Akşehir 227.1 km
Kırıkkale 229.3 km
Yenişehir Airport 231.4 km
Yenişehir Airport 235.0 km
Cihanbeyli 247.0 km
Kastamonu 250.2 km
Istanbul / Sabiha Gokcen 255.5 km
Yalova Airport 258.0 km
İnebolu 269.8 km
Istanbul 272.6 km
Konya 281.6 km
Sarıyer 284.6 km
Bursa 286.9 km
Kilyos 290.0 km
Suleyman Demirel 306.9 km
Isparta 307.5 km
Istanbul 310.7 km
Uşak 314.1 km
Kırşehir 321.8 km
Burdur 324.9 km
Aksaray 350.3 km
Yozgat 366.3 km
Çorum 373.3 km
Nevşehir Kapadokya Airport 374.4 km
Karaman 377.7 km
Antalya 380.7 km
Muratpaşa 381.7 km
Nevşehir 397.7 km
Alanya 398.3 km
Denizli 398.5 km
Bandırma 406.5 km
Ereğli 407.2 km
Çorlu 411.8 km
Sinop (Kap) 415.0 km
Balıkesir 424.0 km
Gazipaşa Airport 428.5 km
Niğde 429.3 km
Merzifon 436.5 km
Mangalia 447.9 km
Tekirdağ 451.5 km
Akhisar 452.9 km
Finike 453.2 km
Sfântu Gheorghe 456.9 km
Anamur 458.9 km
Constanța 469.5 km
Erkilet Intl. Airport 470.3 km
Varna 471.4 km
Amasya 473.2 km
Gura Portitei 477.9 km
Simferopol Airport 481.9 km
Fethiye 482.4 km
Silifke 483.2 km
Varna Airport 484.7 km
Kaş 485.4 km
Burgas Airport 488.3 km
Burgas 489.1 km
Mihail Kogălniceanu Airport 492.1 km
Umirea 492.2 km
Muğla 494.4 km
Kırklareli 495.7 km
Kastellorizo 496.9 km
Dalaman 497.2 km
Mersin 498.4 km
Aydın 501.9 km
Medgidia 503.5 km
Manisa 507.1 km
Adamclisi 518.3 km
Balıkesir Koca Seyit Airport 523.2 km
Marmaris 527.2 km
Cernavodă 527.6 km
Casimcea 529.5 km
Adana Şakirpaşa Airport 539.3 km
İzmir 541.6 km
Feteşti 545.5 km
Incirlik Air Base Airport 548.8 km
İzmir Adnan Menderes Airport 548.8 km
Milas- Bodrum Airport 553.5 km
Çiğli Air Base 554.5 km
Hârşova 556.8 km
Kuşadası 558.3 km
Rhodes/Paradissi 572.9 km